25 de junio de 2025Un análisis de LDH en sangre mide la lactato deshidrogenasa, una enzima presente en casi todas las células del organismo. Ese único…
25 de junio de 2025A CPK blood test measures creatine kinase, an enzyme that leaks out of muscle cells when they are stressed or…
25 de junio de 2025A troponin blood test measures a protein that leaks into your bloodstream when heart muscle cells are damaged, and it…
25 de junio de 2025A transferrin blood test measures the protein that carries iron through your bloodstream. It is almost never read on its…
25 de junio de 2025If your lab report shows a reactive RPR test, the most useful thing to know first is this: a positive…
25 de junio de 2025Toxoplasmosis IgG and IgM are the two antibodies your lab measured to work out whether you have ever met a…
25 de junio de 2025A hepatitis C antibody test tells you whether you have ever encountered the hepatitis C virus — not whether you…
25 de junio de 2025An HBsAg positive result means the hepatitis B virus is present in your body right now. It is also one…
25 de junio de 2025An HIV blood test looks for traces of the virus in a small blood sample, and the version used in…
24 de junio de 2025El análisis de CA 15-3 en sangre mide una proteína que el tejido mamario libera al torrente sanguíneo. Los médicos lo utilizan principalmente para…
24 de junio de 2025Un análisis de sangre CA 125 mide una proteína que liberan los tejidos ováricos y pélvicos cuando están irritados o inflamados…
24 de junio de 2025The CA 19-9 blood test measures a substance that the pancreas and bile ducts release into the bloodstream, and doctors…
24 de junio de 2025El análisis de sangre CEA mide el antígeno carcinoembrionario, una proteína que los médicos utilizan principalmente para hacer el seguimiento del cáncer colorrectal a lo largo del tiempo, más que para…
24 de junio de 2025An AFP blood test measures alpha-fetoprotein, a protein your body produced in large amounts before you were born and makes…
24 de junio de 2025A PSA blood test measures prostate-specific antigen, a protein made by your prostate — not by cancer. That distinction matters…
20 de junio de 2025A 17-hydroxyprogesterone test measures a steroid your adrenal glands make on the way to producing cortisol, and it is the…
20 de junio de 2025An LH blood test measures luteinizing hormone, a messenger made by the pituitary gland at the base of your brain.…
20 de junio de 2025An FSH blood test measures follicle-stimulating hormone, the pituitary signal that tells the ovaries to grow eggs and the testicles…
20 de junio de 2025A PTH blood test measures parathyroid hormone, the hormone that acts as your body's thermostat for calcium. Here is the…
20 de junio de 2025A cortisol blood test measures the main hormone your adrenal glands release under stress, and its result depends almost entirely…
20 de junio de 2025La globulina transportadora de tiroxina (TBG) es la principal proteína que transporta las hormonas tiroideas por el torrente sanguíneo, y explica por qué un total…
20 de junio de 2025A free T4 blood test measures the active, unbound form of thyroxine — the main hormone your thyroid gland produces…
20 de junio de 2025A vitamin K blood test is rarely what your laboratory actually runs. Instead of measuring the vitamin itself, most labs…
20 de junio de 2025A vitamin E blood test measures alpha-tocopherol, the form of vitamin E your body actually keeps and uses, circulating in…
20 de junio de 2025A vitamin A blood test measures retinol, the active form of vitamin A circulating in your bloodstream. Laboratories print it…
20 de junio de 2025A vitamin C blood test measures how much ascorbic acid is circulating in your blood at the moment the sample…
20 de junio de 2025The vitamin D blood test, printed on your report as 25-OH vitamin D or 25-hydroxyvitamin D, measures how much vitamin…
20 de junio de 2025A folic acid blood test measures how much vitamin B9 is circulating in your blood, and it is one of…
19 de junio de 2025A serum amyloid A blood test measures a protein that your liver releases within hours of inflammation starting. If SAA…
19 de junio de 2025A testosterone blood test measures the amount of testosterone, the body's main androgen (male sex hormone), moving through your bloodstream.…